Wood lamella handling system and method for operating the wood lamella handling system

Abstract

The invention relates to a wood lamella handling system comprising: - a first belt conveyor for conveying a layer of wood lamellae in a first conveying direction (12); - a supply station for providing the layer of wood lamellae; - a transfer means for removing the layer of wood lamellae from the supply station and for placing the layer of wood lamellae onto the first belt conveyor (21); - a discharge belt conveyor (24, 25, 26) for separating wood lamellae from the layer of wood lamellae received on the first belt conveyor (21), wherein the discharge belt conveyor (24, 25, 26) and the first belt conveyor (21) can be operated at different conveying speeds;- an alignment station (3) with at least two alignment elements (34, 35) spaced apart from each other in the longitudinal direction (10) of the lamellae, wherein the alignment elements (34, 35) can be inserted into the discharge conveyor receiving plane (31), wherein the alignment elements (34, 35) can be removed from the discharge conveyor receiving plane (31) to allow the wooden lamellae to be conveyed further by means of the discharge conveyor (24, 25, 26).

Description

[0001] The invention relates to a wood slat handling system and a method for operating the wood slat handling system.

[0002] EP0375807A1 discloses a method and apparatus for producing wooden lamellas from sawn timber. Handling the wooden lamellas in an apparatus such as that described in EP0375807A1 is only possible with insufficient precision.

[0003] DE 10 2009 019512 A1 discloses a wood slat handling system according to the preamble of claim 1.

[0004] The object of the present invention was to overcome the disadvantages of the prior art and to provide an improved wood slat handling system and a method for operating the wood slat handling system.

[0005] This object is achieved by a device and a method according to the claims. According to the invention, a wood slat handling system is designed. The wood slat handling system comprises: a first belt conveyor with a receiving plane for receiving a layer of wooden lamellas and for conveying the layer of wooden lamellas in a first conveying direction transverse to a lamella longitudinal direction; a supply station for supplying a layer of wooden lamellas or a stack of several layers of wooden lamellas arranged one above the other; a transfer means for removing the layer of wooden lamellas from the supply station and for placing the layer of wooden lamellas on the first belt conveyor; a discharge belt conveyor with a discharge belt receiving plane for separating the wooden lamellas of the layer of wooden lamellas received on the first belt conveyor, wherein the discharge belt conveyor and the first belt conveyor at least partially overlap in an overlap region in the first conveying direction, wherein the discharge belt conveyor and the first belt conveyor are operable at different conveying speeds;an alignment station with at least two alignment elements spaced apart from one another in the longitudinal direction of the slats, wherein the alignment elements can be introduced into the take-off belt receiving plane in such a way that the wooden slats transported on the take-off belt conveyor can be brought into contact with the alignment elements and thereby aligned, wherein the alignment elements can be removed from the take-off belt receiving plane in order to enable further conveyance of the wooden slats by means of the take-off belt conveyor.

[0006] The wood slat handling system according to the invention has the advantage that the individual wood slats provided in a wood slat layer can be easily separated and aligned accordingly for further processing.

[0007] Furthermore, it can be provided that when placing the wooden slat layer on the first belt conveyor, the transfer device is synchronized with the first belt conveyor in its horizontal movement transverse to the longitudinal direction of the slats. This measure can ensure precise placement of the wooden slat layer.

[0008] In a first embodiment, the first belt conveyor may be operated at a continuous speed. In a further embodiment, the first belt conveyor may also be operated intermittently at different speeds.

[0009] Furthermore, it may be expedient to arrange a first discharge belt conveyor, a second discharge belt conveyor, and a third discharge belt conveyor at a distance from one another in the longitudinal direction of the slats, with a first alignment element arranged between the first discharge belt conveyor and the second discharge belt conveyor. An alignment station designed in this way can particularly serve to align the individual wooden slats easily and as precisely as possible.

[0010] Furthermore, it can be provided that the alignment elements are arranged on a rotating traction mechanism, wherein the alignment elements can be inserted into and removed from the discharge belt receiving plane by rotating the rotating traction mechanism. This has the advantage that this measure allows the alignment elements to be easily inserted into the discharge belt receiving plane, so that the wooden slats rest against the alignment elements and are thereby aligned. The alignment elements can then be easily removed from the discharge belt receiving plane by rotating the rotating traction mechanism, in order to enable further transport of the wooden slats.In particular, it can be provided that the rotating traction means can be operated at different speeds in order to be able to introduce the alignment elements into the discharge belt receiving plane and to be able to remove them from the discharge belt receiving plane as quickly as possible after the wooden slats have stopped.

[0011] Furthermore, it can be provided that the discharge belt conveyor comprises a first discharge belt conveyor section and a second discharge belt conveyor section, arranged one behind the other in the first conveying direction. This has the advantage that greater process accuracy can be achieved by dividing the discharge belt conveyor into several discharge belt conveyor sections. In particular, it can be provided that the first discharge belt conveyor section and the second discharge belt conveyor section are each formed by separate conveyor belts. In particular, it can be provided that the first discharge belt conveyor section and the second discharge belt conveyor section are arranged next to one another in the longitudinal direction of the slats and partially overlap.

[0012] Also advantageous is a form of embodiment according to which it can be provided that an acceleration station is formed subsequent to the take-off belt conveyor, wherein the acceleration station has a first acceleration roller which is rotatable about a first axis of rotation and a second acceleration roller which is rotatable about a second axis of rotation, wherein the first acceleration roller and the second acceleration roller are arranged spaced apart from one another in the slat longitudinal direction, wherein the first axis of rotation is arranged parallel to the take-off belt receiving plane and is aligned at a first axis of rotation angle to the slat longitudinal direction and the second axis of rotation is arranged parallel to the take-off belt receiving plane and is aligned at a second axis of rotation angle to the slat longitudinal direction, wherein the first axis of rotation angle is between 15° and 75°, in particular between 30° and 60°, preferably between 40° and 50°,wherein the second rotation axis angle is between 15° and 75°, in particular between 30° and 60°, preferably between 40° and 50°. This has the advantage that, by means of the acceleration station, the individual wooden slats can be accelerated in the first conveying direction transversely to the slat longitudinal direction, but can also be accelerated simultaneously in the second conveying direction in the slat longitudinal direction.

[0013] In particular, it can be provided that the first rotation axis angle and the second rotation axis angle are equal.

[0014] According to a further development, it is possible for the first acceleration roller to interact with a first hold-down roller, wherein the first hold-down roller is designed to be flexible, in particular for the first hold-down roller to have hold-down roller bristles distributed radially outwardly. This measure makes it possible to keep the forces exerted by the acceleration roller on the wooden slats within a certain limit. Thus, damage to the wooden slats can be prevented as far as possible.

[0015] Furthermore, it can be provided that the hold-down roller is formed by a grinding brush, wherein the hold-down roller bristles have a grain. Particularly with a grain on the hold-down roller bristles, a good hold-down behavior can be achieved in order to be able to separate the wooden slats as well as possible.

[0016] In particular, the hold-down roller can be formed by a grinding brush in the form of a round brush. The hold-down roller bristles can be made of a wear-resistant material. In particular, the hold-down roller bristles can be made of a material that has a good coefficient of friction with the wooden slats. In this case, the hold-down roller bristles can be provided with a grain.

[0017] The grain size can be between 90 and 350, in particular between 120 and 300, preferably between 150 and 250. Especially with such a grain size, good hold-down behavior can be achieved in order to be able to separate the wooden lamellas as well as possible.

[0018] The grain size is given in mesh and the determination of the grain size is standardized in DIN ISO 6344 or according to the standards of the Federation of European Producers of Abrasives (FEPA).

[0019] In particular, it can be provided that the hold-down roller bristles are made of a steel material. The grain can be formed by silicon carbide. Furthermore, it can be expedient if a longitudinal pull-out is formed, which serves to convey the separated wooden slats in a second conveying direction along the slat longitudinal direction, wherein the longitudinal pull-out comprises at least a first longitudinal pull-out conveyor belt and a second longitudinal pull-out conveyor belt, wherein the first longitudinal pull-out conveyor belt and the second longitudinal pull-out conveyor belt are arranged one behind the other in the second conveying direction, wherein the first longitudinal pull-out conveyor belt has a first conveying orientation, which is formed at a first conveying orientation angle to the second conveying direction, and wherein the second longitudinal pull-out conveyor belt has a second conveying orientation, which is formed at a second conveying orientation angle to the second conveying direction.wherein the first conveying orientation angle is between 1° and 30°, in particular between 3° and 20°, preferably between 5° and 10°, wherein the second conveying orientation angle is between 1° and 30°, in particular between 3° and 20°, preferably between 5° and 10°, wherein the longitudinal extension has an alignment stop with an alignment stop surface, wherein the alignment stop surface is aligned parallel to the second conveying direction. This has the advantage that this measure enables precise alignment of the wooden lamella, whereby the wooden lamella can be conveyed in the second conveying direction even during its alignment.

[0020] Furthermore, vertically arranged rollers can be provided on the alignment stop. The vertically arranged rollers can be positioned such that a tangent to a circumferential surface of the rollers lies in the alignment stop surface. The vertically arranged rollers can minimize friction between the wooden slats and the alignment stop during slat movement.

[0021] The conveying orientation refers to the theoretical conveying direction of the longitudinal conveyor belt. The actual conveying direction, once the wood slat is in contact with the alignment stop, will be in the second conveying direction and thus deviates from the conveying orientation of the longitudinal conveyor belts. This results in a relative movement between the longitudinal conveyor belt and the wood slat, which presses the wood slat against the alignment stop.

[0022] In particular, it can be provided that the first conveying orientation angle and the second conveying orientation angle are of equal size.

[0023] Furthermore, it can be provided that the transfer means comprises a transfer head designed to manipulate the wooden lamella layer, wherein the transfer head comprises a first suction bar and a second suction bar, wherein the first suction bar and the second suction bar are arranged at a distance from one another in the longitudinal direction of the lamella, wherein the transfer means comprises a vacuum generator designed to create a vacuum in the first suction bar and in the second suction bar. A transfer head designed in this way has the advantage that it can be used to transport wooden lamella layers of various shapes.

[0024] In particular, it can be provided that the first suction bar and the second suction bar have a longitudinal extension in the first conveying direction.

[0025] Furthermore, a first clamping roller arrangement can be provided, which serves to convey the individual wooden slats in the second conveying direction. This has the advantage that this measure allows the individual wooden slats to be transported at a precise conveying speed.

[0026] According to a particular embodiment, it is possible for an optical detection device to be formed in the second conveying direction, adjacent to the first clamping roller arrangement, by means of which the surface of the separated wooden slats can be detected. The optical detection device can detect the condition of the surface of the wooden slats.

[0027] According to an advantageous development, it can be provided that a second clamping roller arrangement is formed in the second conveying direction subsequent to the optical detection means, wherein the first clamping roller arrangement and the second clamping roller arrangement are arranged at a clamping roller distance from one another, wherein the clamping roller distance is smaller than a minimum slat length. By means of this measure, it can be achieved that the wooden slat can be guided through the optical detection means at a uniform speed over its entire length. In particular, it can be provided that the first clamping roller arrangement and the second clamping roller arrangement have the same conveying speed. Furthermore, it can be provided that the wooden slat is guided freely between the first clamping roller arrangement and the second clamping roller arrangement.The first clamping roller arrangement and the second clamping roller arrangement can be designed by their spacing from one another such that the wooden slat is always advanced by the first clamping roller arrangement or by the second clamping roller arrangement while passing through the optical detection means.

[0028] In particular, it may be advantageous if, in the second conveying direction, a braking table is provided adjacent to the second clamping roller arrangement, comprising a braking table support surface and a braking element arranged above the braking table support surface, wherein the braking element is designed to press the wooden lamellas against the braking table support surface. This has the advantage that, following optical detection or after conveying in the second conveying direction, the wooden lamella can be braked by means of the second clamping roller arrangement on the braking table and prepared for further conveying.

[0029] Furthermore, it can be provided that at least two of the first alignment elements are arranged on the revolving traction means. This has the advantage that the revolving traction means does not have to be guided around a complete circle in order to reposition it for braking, but rather that only a partial further movement of the revolving traction means is sufficient to disengage one of the first alignment elements and engage another of the first alignment elements.

[0030] Furthermore, a transverse conveyor system can be provided in the area of ​​the braking table, wherein the transverse conveyor system can be used to convey the wooden slats in a third conveying direction transverse to the longitudinal direction of the slats. The transverse conveyor system comprises a revolving traction device with several carriers arranged thereon. This has the advantage that the individual wooden slats can be pulled off the clamping table in an aligned manner.

[0031] According to the invention, a method for operating the wood slat handling system is provided. The method comprises the following steps: Providing a layer of wooden slats or a stack of several layers of wooden slats arranged one above the other at the provision station; removing the layer of wooden slats from the provision station and placing the layer of wooden slats on the first belt conveyor by means of the transfer means; conveying the layer of wooden slats in the first conveying direction transversely to the longitudinal direction of the slats by means of the first belt conveyor at a first conveying speed; operating the discharge belt conveyor at a second conveying speed, wherein the second conveying speed is greater than the first conveying speed, and wherein the wooden slats are thereby drawn off the discharge belt conveyor when they are in the overlapping area, wherein they have a greater distance from one another on the discharge belt conveyor than on the first belt conveyor;Inserting the alignment elements of the alignment station into the discharge belt receiving plane so that the wooden slats transported on the discharge belt conveyor are brought into contact with the alignment elements and thus aligned; removing the alignment elements from the discharge belt receiving plane to enable further conveyance of the wooden slats by means of the discharge belt conveyor.

[0032] A layer of wooden slats within the meaning of this document is several wooden slats arranged next to each other.

[0033] A wooden slat has a longitudinal extension, also called length, a transverse extension, also called width, and a height, also called thickness.

[0034] The longitudinal direction of the slats is the direction of the longitudinal extension of the wooden slats. Since the wooden slat handling system is designed to handle unidirectional wooden slats and the wooden slats are not rotated during handling in the wooden slat handling system, the longitudinal direction of the slats handled on the wooden slat handling system is always the same with respect to the wooden slat handling system. For this reason, for the sake of simplicity, the conveying directions or component alignments of the wooden slat handling system are also referred to as the longitudinal direction of the slats. The longitudinal direction of the slats is thus a directional designation in the wooden slat handling system that, when the wooden slat handling system is used as intended, corresponds to the longitudinal direction of a wooden slat being manipulated on the wooden slat handling system, but does not require the presence of this wooden slat.

[0035] A belt conveyor, as defined in this document, is a continuous conveyor with a traction mechanism rotating between a drive pulley and a deflection pulley. The traction mechanism can form the receiving plane for receiving the wooden slat layer. In particular, the traction mechanism can be designed in the form of a conveyor belt. Alternatively, the traction mechanism can also be designed in the form of conveyor chains.

[0036] For a better understanding of the invention, it is explained in more detail with reference to the following figures.

[0037] They show in a highly simplified, schematic representation: Fig. 1 shows a first embodiment of a wood slat handling system in a perspective view; Fig. 2 shows the first embodiment of the wood slat handling system in a perspective detailed view showing a supply station; Fig. 3 shows the first embodiment of the wood slat handling system in a perspective detailed view showing an acceleration station; Fig. 4 shows the first embodiment of the wood slat handling system in a plan view showing the acceleration station; Fig. 5 shows the first embodiment of the wood slat handling system in a perspective detailed view showing a cross conveyor system.

[0038] By way of introduction, it should be noted that in the variously described embodiments, identical parts are provided with identical reference symbols or component designations, whereby the disclosures contained in the entire description can be applied mutatis mutandis to identical parts with identical reference symbols or component designations. Furthermore, the positional information chosen in the description, such as top, bottom, side, etc., refers to the directly described and illustrated figure, and in the event of a change in position, these positional information must be applied mutatis mutandis to the new position.

[0039] Fig. 1 shows a perspective view of a first embodiment of a wood slat handling system 1. Fig. 2 shows a perspective detailed view of a supply station 2 of the wood slat handling system 1. Fig. 3 shows a perspective detailed view of an alignment station 3 of the wood slat handling system 1. Fig. 4 shows the alignment station 3 in a top view. Fig. 5 shows a cross conveyor system 4 of the wood slat handling system 1 in a perspective view. The detailed representations of the Fig. 2 to 5 show details of the wood slat handling system 1, which is Fig. 1 The structure and details of the first embodiment of the wood slat handling system 1 are described below based on a summary of the Fig. 1 to 5 described, whereby the same reference symbols or component designations are used for the same parts as in the respective preceding figures. To avoid unnecessary repetition, reference is made to the detailed description in the respective preceding figures.

[0040] As can be seen from the Fig. 1 and 2As can be seen particularly clearly, the provision station 2 can be used to provide one or more wooden slat layers 5 arranged one above the other. Several wooden slats 6 can be arranged in one wooden slat layer 5. For the sake of clarity, only the topmost wooden slat layer 5 is shown in the provision station 2, with a white block shown below it, since a meaningful representation is not possible due to the low height of the wooden slat layer 5 and the line thickness.

[0041] The individual wooden slats 6 have a length 7, a width 8, and a height 9. The length 7 corresponds to a multiple of the width 8. Since the wooden slats 6 are manipulated in a specific orientation in the wooden slat handling system 1, a slat longitudinal direction 10 can be defined in the wooden slat handling system 1, which is oriented in the longitudinal extension of a wooden slat 6 picked up on the wooden slat handling system 1.

[0042] How particularly good Fig. 2As can be seen, it can be provided that the supply station 2 comprises a plurality of supply conveyor belts 11, which are arranged at a distance from one another in the slat longitudinal direction 10. By means of the supply conveyor belts 11, the supplied wooden slat layer or the stack of wooden slat layers 5 can be displaced in a first conveying direction 12 transversely to the slat longitudinal direction 10. In particular, it can be provided that the wooden slat layers 5 or the stack of wooden slat layers 5 is placed on the supply conveyor belt 11 by means of an industrial truck, for example a forklift truck.

[0043] Furthermore, it can be provided that a transfer means 13 is designed which is designed to remove one of the wooden slat layers 5 from the supply station 2 and to place the wooden slat layer 5 on a first conveyor station 14.

[0044] As from Fig. 2As can be seen, the transfer means 13 can have a transfer head 15. A first suction bar 16 and a second suction bar 17 can be arranged on the transfer head 15 at a distance from one another in the slat longitudinal direction 10.

[0045] Of course, as can be seen from Fig. 2 As can be seen, in addition to the first suction bar 16 and the second suction bar 17, further suction bars can also be formed. In particular, it can be provided that the individual suction bars 16, 17 are coupled to a vacuum generator 18. The vacuum generator 18 can be designed, for example, in the form of a vacuum blower.

[0046] As from Fig. 2As can also be seen, it can be provided that the transfer head 15 is mounted on a trolley 19 in a height-adjustable manner. The trolley 19 can be guided displaceably on a portal 20 in the first conveying direction 12. In particular, it can be provided that the trolley 19 is displaced relative to the portal 20 by means of a revolving traction means, such as a toothed belt.

[0047] By means of a transfer head 15 designed in this way, the individual wooden slats 6 of the wooden slat storage 5 arranged next to one another can be gripped simultaneously. The dimensions of the wooden slats 6 or the number of wooden slats 6 in the wooden slat layer 5 must be within a certain range; however, these limits can be large, so that differently designed wooden slats 6 can be manipulated in the wooden slat handling system 1.

[0048] As from Fig. 2As can be seen further, it can be provided that the first conveyor station 14 comprises several first belt conveyors 21 arranged next to one another in the longitudinal direction 10 of the slats. The first belt conveyors 21 define a receiving plane 22 on which the wooden slats 6 are placed. As can be seen from Fig. 2 As can be seen, it can be provided that the first belt conveyor 21 is also designed in the form of a conveyor belt, wherein the receiving plane 22 is defined by the surface of the conveyor belt or the conveyor belt. By means of the first belt conveyor 21 or the plurality of first belt conveyors 21 arranged next to one another, the wooden slat layer 5 can be displaced in the first conveying direction 12.

[0049] Furthermore, it can be provided that a separating device 23 is formed in the first conveying direction 12 adjacent to the first conveying station 14. The separating device 23 can serve to separate the wooden slats 6 located in the wooden slat layer 5. The separating device 23 is in the Fig. 3 and 4 particularly clearly visible.

[0050] The separating device 23 can have a first discharge belt conveyor 24, a second discharge belt conveyor 25, and a third discharge belt conveyor 26, spaced apart from one another in the slat longitudinal direction 10. Of course, it is also conceivable for additional discharge belt conveyors or fewer discharge belt conveyors to be formed. Furthermore, it is also conceivable for the individual discharge belt conveyors 24, 25, 26 to each have a first discharge belt conveyor part 27 and a second discharge belt conveyor part 28. The first discharge belt conveyor part 27 and the second discharge belt conveyor part 28 can be implemented in the form of independently formed conveyor belts.

[0051] In particular, it can be provided that the first take-off belt conveyor parts 27 are coupled to one another by means of a common drive. Furthermore, it can be provided that the second take-off belt conveyor parts 28 are coupled to one another by means of a common drive. Thus, it is conceivable that the first take-off belt conveyor parts 27 and the second take-off belt conveyor parts 28 can be operated at different speeds. In particular, it can be provided that the first take-off belt conveyor part 27 can be operated at a higher conveying speed than the first belt conveyor 21. This measure can achieve separation of the individual wooden slats 6 of the wooden slat layer 5 placed on the first belt conveyor 21.

[0052] Furthermore, it can be provided that the first belt conveyor 21 and the first discharge belt conveyor part 27 overlap in an overlap region 29. Furthermore, it can be provided that the first discharge belt conveyor part 27 and the second discharge belt conveyor part 28 overlap each other in a further overlap region 30.

[0053] In particular, it can be provided that the discharge belt conveyors 24, 25, 26 or their discharge conveyor belt parts 27, 28 form a discharge belt receiving plane 31 which is formed on a surface of the conveyor belts.

[0054] In particular, it can be provided that the discharge belt receiving plane 31 and the receiving plane 22 of the first conveyor station 14 are at the same level or are congruent.

[0055] How particularly good Fig. 3As can be seen, it can be provided that in the region of the second take-off belt conveyor part 28, a first circulating traction means 32 and a second circulating traction means 33 are formed between each two of the take-off belt conveyors 25, 26, 27. The circulating traction means 32, 33 can, for example, each be designed in the form of a circulating chain. Furthermore, it is also conceivable that further circulating traction means are formed. Furthermore, it is conceivable that the individual circulating traction means 32, 33 are coupled to one another by means of a common drive shaft and driven by a common drive.

[0056] Furthermore, it can be provided that a first alignment element 34 is arranged on the first rotating traction means 32. Furthermore, it can be provided that a second alignment element 35 is arranged on the second rotating traction means 33. Due to the described configuration, the first alignment element 34 and the second alignment element 35 can be arranged at a distance from one another in the slat longitudinal direction 10. In particular, it can be provided that the first alignment element 34 and the second alignment element 35 can optionally be introduced into the take-off belt receiving plane 31, so that the wooden slats 6 conveyed on the take-off belt conveyor belts 24, 25, 26 can be brought into contact with the alignment elements 34, 35 and thus the individual wooden slats 6 can be aligned.When the wooden slats 6 rest against the alignment elements 34, 35 and are pressed against them by the discharge belt conveyors 24, 25, 26, a relative movement occurs between the wooden slats 6 and the discharge belt conveyors 24, 25, 26.

[0057] Furthermore, it can be provided that the alignment elements 34, 35 can be removed again from the take-off belt receiving plane 31 in order to enable further transport of the individual wooden slats 6. The insertion or removal of the alignment elements 34, 35 from the take-off belt receiving plane 31 can take place by rotating the rotating traction means 32, 33 around a drive wheel or around a deflection wheel. In particular, it can be provided that the rotating traction means 32, 33 is tensioned between the drive wheel and the deflection wheel. Furthermore, it can be provided that the alignment element 34, 35 is designed to protrude outwards relative to the rotating traction means 32, 33 in order to be able to provide a stop surface in the take-off belt receiving plane 31. Furthermore, it can be provided that a plurality of the first alignment elements 34 are arranged on the first rotating traction means 32.The plurality of alignment elements 34 can be arranged spaced apart from one another along the length of the first circulating traction means 32. Analogously, it is also conceivable for several of the second alignment elements 35 to be arranged on the second circulating traction means 33.

[0058] In a further, not shown, embodiment, it is also conceivable for the alignment elements 34, 35 to be arranged radially outwardly on a roller or a wheel. The release of the wooden slat 6 occurs in a similar way to the rotating traction means 32, 33 by rotating the wheel.

[0059] In yet another embodiment variant, it is also conceivable that the first alignment element 34 and the second alignment element 35 can each be inserted into the take-off tape receiving plane 31 from above or from below by means of a linear actuator and can be displaced in a vertical sliding direction between a blocking position in which they protrude into the take-off tape receiving plane 31 and a release position in which they are retracted from the take-off tape receiving plane 31.

[0060] In a further, not shown embodiment, it is also conceivable that the individual discharge belt conveyors 24, 25, 26 are not in two parts as in Fig. 3 and 4 shown, but extend over the entire length of the first discharge belt conveyor part 27 and the second discharge belt conveyor part 28.

[0061] As in the Fig. 3 and 4As can also be seen, an acceleration station 36 can be provided at the end of the second take-off belt conveyor part 28. The acceleration station 36 can have a first acceleration roller 37. The first acceleration roller 37 can interact with a first hold-down roller 38.

[0062] In particular, it can be provided that one of the wooden slats 6 is clamped between the first acceleration roller 37 and the first hold-down roller 38. Furthermore, it can be provided that a second acceleration roller 39 is formed, which interacts with a second hold-down roller 40.

[0063] The first acceleration roller 37 and the second acceleration roller 39 can be arranged at a distance from one another in the longitudinal direction 10 of the slats. In particular, it can be provided that the first acceleration roller 37 rotates about a first axis of rotation 41. Furthermore, it can be provided that the second acceleration roller 39 rotates about a second axis of rotation 42. In particular, it can be provided that the first axis of rotation 41 and the second axis of rotation 42 are arranged below the take-off belt holder 31.

[0064] The radius of the first acceleration roller 37 or the second acceleration roller 39 can be selected such that a tangent to the surface of the first acceleration roller 37 or the second acceleration roller 39 lies in the take-off belt receiving plane 31. Furthermore, it can be provided that the hold-down rollers 38, 40 are adjustable, so that a distance between the acceleration roller 37 and the first hold-down roller 38 or between the second acceleration roller 39 and the second hold-down roller 40 is adjustable. Furthermore, a contact pressure of the hold-down roller 38, 40 can be adapted or adjusted to the acceleration roller 39, 37.

[0065] As from Fig. 4As can also be seen, it can be provided that the first rotation axis 41 is arranged at a first rotation axis angle 43 to the slat longitudinal direction. Furthermore, it can be provided that the second rotation axis 42 is arranged at a second rotation axis angle 44 to the slat longitudinal direction 10.

[0066] As from Fig. 4 As can also be seen, it can be provided that a longitudinal extension 45 is formed in the first conveying direction 12 adjacent to the acceleration station 36. The longitudinal extension 45 can serve to accelerate or convey the wooden slats 6 in a second conveying direction 46.

[0067] In particular, it can be provided that the second conveying direction 46 runs parallel to the slat longitudinal direction 10. As can be seen from Fig. 4 As can also be seen, it can be provided that the longitudinal extension 45 comprises a first longitudinal extension conveyor belt 47 and a second longitudinal extension conveyor belt 48.

[0068] The first longitudinal extraction conveyor belt 47 has a first conveying orientation 49. The first conveying orientation 49 is formed at a first conveying orientation angle 50 to the slat longitudinal direction 10.

[0069] The second longitudinal extraction conveyor belt 48 has a second conveying orientation 51. The second conveying orientation 51 is formed at a second conveying orientation angle 52 to the slat longitudinal direction 10.

[0070] Furthermore, it can be provided that an alignment stop 53 is formed, which has an alignment stop surface 54. By means of the first conveying orientation 49 of the first longitudinal extraction conveyor belt 47 and by means of the second conveying orientation 51 of the second longitudinal extraction conveyor belt 48, the conveyed wooden slats 6 can be pressed against the alignment stop surface 54 of the alignment stop 53.

[0071] This allows the wooden slats 6 to be further aligned. By keeping the first conveying orientation angle 50 and the second conveying orientation angle 52 small, the wooden slats 6 can be primarily conveyed in the second conveying direction 46.

[0072] How particularly good in Fig. 5As can be seen, it can be provided that a first clamping roller arrangement 55 and a second clamping roller arrangement 56 are formed adjacent to the longitudinal extension 45. An optical detection means 57 can be arranged between the first clamping roller arrangement 55 and the second clamping roller arrangement 56. By means of the first clamping roller arrangement 55 and the second clamping roller arrangement 56, the wooden slat 6 can be guided through the optical detection means 57 at a constant speed. Thus, the surface structure or the surface quality of the wooden slat 6 can be detected by means of the optical detection means 57. The first clamping roller arrangement 55 or the second clamping roller arrangement 56 can have a drive roller and, opposite this, a counter-holder roller. The wooden slat 6 can be clamped between the drive roller and the counter-holder roller.

[0073] As from Fig. 5As can also be seen, the transverse conveyor system 4 can be arranged adjacent to the clamping roller arrangements 55, 56. The transverse conveyor system 4 can comprise a braking table 58, which serves to brake or receive the wooden slats 6 guided by the second clamping roller arrangement 56. The braking table 58 can have a braking table support surface 59.

[0074] Furthermore, a braking element 60 can be provided, which serves to brake the wooden slats 6. The braking element 60 can, for example, be designed in the form of a pivoting arm, which can pivot downward from above onto the wooden slat 6 and press the wooden slat 6 against the braking table 58. Thus, the wooden slat 6 can be braked by being clamped between the braking element 60 and the braking table 58.

[0075] Furthermore, it can be provided that recesses are formed in the braking table 58, in which circumferential traction means 61 with drivers 62 arranged thereon are formed. The traction means 61 can serve to convey the wooden slats 6 in a third conveying direction 63. In particular, it can be provided that the third conveying direction 63 runs transversely to the slat longitudinal direction 10.

[0076] Furthermore, it can be provided that the traction means 61 is guided around a drive roller and a deflection roller, wherein the drive roller and the deflection roller are arranged at a distance from one another in the third conveying direction 63. In particular, it can be provided that several of the drivers 62 are arranged at a distance from one another in the third conveying direction 63 for each traction means 61. Furthermore, it can be provided that several of the traction means 61, each with drivers 62 arranged thereon, are arranged at a distance from one another in the slat longitudinal direction 10. A further conveying system 64 can be formed adjacent to the cross conveyor system 4. The further conveying system 64 can also serve to convey the wooden slats 6 in the third conveying direction 63. In particular, it can be provided that the further conveying system 64, similar to the cross conveyor system 4, has several rotating traction means on which drivers are arranged.

[0077] The embodiments show possible embodiments, whereby it should be noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but rather various combinations of the individual embodiments with one another are also possible and this possibility of variation lies within the skill of the person skilled in the art in this technical field due to the teaching of technical action by means of the objective invention.

[0078] The scope of protection is determined by the claims. However, the description and drawings must be used to interpret the claims. Individual features or combinations of features from the various embodiments shown and described may represent independent inventive solutions. The problem underlying the independent inventive solutions can be derived from the description.

[0079] All information on value ranges in this description is to be understood as including any and all sub-ranges thereof, e.g. the information 1 to 10 is to be understood as including all sub-ranges starting from the lower limit of 1 and the upper limit of 10, ie all sub-ranges begin with a lower limit of 1 or greater and end with an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.

[0080] For the sake of clarity, it should finally be pointed out that, in order to better understand the structure, some elements have been shown out of scale and / or enlarged and / or reduced in size. Reference symbol list

[0081] 1 Wood slat handling system 30 further overlap area 2 Provisioning station 31 Take-off belt receiving level 3 Alignment station 32 first circulating traction device 4 Cross conveyor system 33 second circulating traction device 5 Wooden slat layer 34 first alignment element 6 wooden slat 35 second alignment element 7 length 36 Acceleration station 8 Width 37 first acceleration roller 9 Height 38 first hold-down roller 10 Slat longitudinal direction 39 second acceleration roller 11 Supply conveyor belt 40 second hold-down roller 12 first conveying direction 41 first axis of rotation 13 Transfer agent 42 second axis of rotation 14 first conveyor station 43 first rotation axis angle 15 Transfer head 44 second rotation axis angle 16 first suction bar 45 Longitudinal extension 17 second suction bar 46 second conveying direction 18 Vacuum generator 47 first longitudinal conveyor belt 19 trolley 48 second longitudinal conveyor belt 20 portal 49 first funding orientation 21 first belt conveyor 50 first funding orientation angle 22 Recording level 51 second funding orientation 23 Separation device 52 second conveyor orientation angle 24 first discharge belt conveyor 53 Alignment stop 25 second discharge belt conveyor 54 Alignment stop surface 26 third discharge belt conveyor 55 first clamping roller arrangement 27 first discharge belt conveyor section 56 second clamping roller arrangement 28 second discharge belt conveyor section 57 optical detection device 29 Overlap area 58 Braking table 59 Braking table support surface 60 Braking element 61 traction device 62 Driver 63 third conveying direction 64 Conveyor system

Claims

1. A wooden lamella handling system (1) comprising - a first belt conveyor (21) with a receiving plane (22) for receiving a wooden lamella layer (5) and for conveying the wooden lamella layer (5) in a first conveying direction (12) transversely to a longitudinal lamella direction (10); - a supply station (2) for providing the wooden lamella layer (5) or a stack of multiple wooden lamella layers (5) arranged one above the other; - a transfer means (13) for removing the wooden lamella layer (5) from the supply station (2) and for placing the wooden lamella layer (5) on the first belt conveyor (21); - a discharge belt conveyor (24, 25, 26) with a discharge belt receiving plane (31) for separating wooden lamellae (6) of the wooden lamella layer (5) received on the first belt conveyor (21), wherein the discharge belt conveyor (24, 25, 26) and the first belt conveyor (21) at least partially overlap in an overlap area (29) in the first conveying direction (12), wherein the discharge belt conveyor (24, 25, 26) and the first belt conveyor (21) can be operated at different conveying speeds; characterized in that the wooden lamella handling system (1) comprises an alignment station (3) with at least two alignment elements (34, 35) spaced apart from one another in the longitudinal lamella direction (10), wherein the alignment elements (34, 35) can be introduced into the discharge belt receiving plane (31) in such a way that the wooden lamellae (6) transported on the discharge belt conveyor (24, 25, 26) can be brought into contact with the alignment elements (34, 35) and thereby aligned, wherein the alignment elements (34, 35) can be removed from the discharge belt receiving plane (31) in order to enable further conveying of the wooden lamellae (6) by means of the discharge belt conveyor (24, 25, 26).

2. The wooden lamella handling system (1) according to claim 1, characterized in that a first discharge belt conveyor (24), a second discharge belt conveyor (25) and a third discharge belt conveyor (26) are arranged at a distance from one another in the longitudinal lamella direction (10), wherein a first alignment element (34) is arranged between the first discharge belt conveyor (24) and the second discharge belt conveyor (25).

3. The wooden lamella handling system (1) according to claim 1 or 2, characterized in that the alignment elements (34, 35) are arranged on a circumferential traction means (32), wherein the alignment elements (34, 35) are insertable into and removable from the discharge belt receiving plane (31) by rotation of the circumferential traction means (32).

4. The wooden lamella handling system (1) according to one of the preceding claims, characterized in that the discharge belt conveyor (24, 25, 26) comprises a first discharge belt conveyor part (27) and a second discharge belt conveyor part (28) arranged one behind the other in the first conveying direction (12).

5. The wooden lamella handling system (1) according to one of the preceding claims, characterized in that an acceleration station (36) is formed downstream of the discharge belt conveyor (24, 25, 26), wherein the acceleration station (36) comprises a first acceleration roller (37), which is rotatable about a first axis of rotation (41), and a second acceleration roller (39), which is rotatable about a second axis of rotation (42), wherein the first acceleration roller (37) and the second acceleration roller (39) are arranged at a distance from one another in the longitudinal lamella direction (10), wherein the first rotation axis (41) is arranged parallel to the discharge belt receiving plane (31) and is aligned at a first rotation axis angle (43) to the longitudinal lamella direction (10) and the second rotation axis (42) is arranged parallel to the discharge belt receiving plane (31) and is aligned at a second rotation axis angle (44) to the longitudinal lamella direction (10), wherein the first rotation axis angle (43) is between 15° and 75°, in particular between 30° and 60°, preferably between 40° and 50°, wherein the second rotation axis angle (44) is between 15° and 75°, in particular between 30° and 60°, preferably between 40° and 50°.

6. The wooden lamella handling system (1) according to claim 5, characterized in that the first acceleration roller (37) cooperates with a first hold-down roller (38), wherein the first hold-down roller (38) is configured to be flexible, in particular that the first hold-down roller (38) has radially outwardly projecting hold-down roller bristles arranged distributed over the circumference.

7. The wooden lamella handling system (1) according to claim 6, characterized in that the hold-down roller (38) is formed by an abrasive brush, wherein the hold-down roller bristles have a grain.

8. The wooden lamella handling system (1) according to one of the preceding claims, characterized in that a longitudinal pull-out (45) is formed, which serves to convey the separated wooden lamellae (6) in a second conveying direction (46) along the longitudinal lamella direction (10), wherein the longitudinal pull-out (45) comprises at least a first longitudinal pull-out conveyor belt (47) and a second longitudinal pull-out conveyor belt (48), wherein the first longitudinal pull-out conveyor belt (47) and the second longitudinal pull-out conveyor belt (48) are arranged one behind the other in the second conveying direction (46), wherein the first longitudinal pull-out conveyor belt (47) has a first conveying orientation (49) which is formed at a first conveying orientation angle (50) to the second conveying direction (46), and wherein the second longitudinal pull-out conveyor belt (48) has a second conveying orientation (51) which is formed at a second conveying orientation angle (52) to the second conveying direction (46), wherein the first conveying orientation angle (50) is between 1° and 30°, in particular between 3° and 20°, preferably between 5° and 10°, wherein the second conveying orientation angle (52) is between 1° and 30°, in particular between 3° and 20°, preferably between 5° and 10°, wherein the longitudinal pull-out (45) has an alignment stop (53) with an alignment stop surface (54), wherein the alignment stop surface (54) is aligned parallel to the second conveying direction (46).

9. The wooden lamella handling system (1) according to one of the preceding claims, characterized in that the transfer means (13) comprises a transfer head (15) which is configured for manipulating the wooden lamella layer (5), wherein the transfer head (15) comprises a first suction bar (16) and a second suction bar (17), wherein the first suction bar (16) and the second suction bar (17) are arranged at a distance from one another in the longitudinal lamella direction (10), wherein the transfer means (13) comprises a negative pressure generator (18) which is configured to form a negative pressure in the first suction bar (16) and in the second suction bar (17).

10. The wooden lamella handling system (1) according to claim 8 or 9, characterized in that a first clamping roller arrangement (55) is formed, which serves to convey the separated wooden lamellae (6) in the second conveying direction (46).

11. The wooden lamella handling system (1) according to claim 10, characterized in that an optical detection means (57), by means of which the surface of the separated wooden lamellae (6) can be detected, is formed downstream of the first clamping roller arrangement (55) in the second conveying direction (46).

12. The wooden lamella handling system (1) according to claim 11, characterized in that a second clamping roller arrangement (56) is formed downstream of the optical detection means (57) in the second conveying direction (46), wherein the first clamping roller arrangement (55) and the second clamping roller arrangement (56) are arranged at a clamping roller spacing from one another, wherein the clamping roller spacing is smaller than a minimum lamella length.

13. The wooden lamella handling system (1) according to claim 12, characterized in that a braking table (58) with a braking table support surface (59) and a braking element (60) arranged above the braking table support surface (59) is formed downstream of the second clamping roller arrangement (56) in the second conveying direction (46), wherein the braking element (60) is configured to press the wooden lamellae (6) against the braking table support surface (59).

14. The wooden lamella handling system (1) according to claim 3, characterized in that at least two of the first alignment elements (34) are arranged on the circumferential traction means (32).

15. The wooden lamella handling system (1) according to claim 13, characterized in that a transverse conveying system (4) is formed in the region of the braking table (58), wherein the transverse conveying system (4) serves to convey the wooden lamellae (6) in a third conveying direction (63) transversely to the longitudinal lamella direction (10), wherein the transverse conveying system (4) comprises a circumferential traction means (61) with a plurality of drivers (62) arranged thereon.

16. A method for operating a wooden lamella handling system (1) according to one of claims 1 to 15, characterized by the method steps: - providing a wooden lamella layer (5) or a stack of a plurality of wooden lamella layers (5) arranged one above the other at the supply station (2); - removing the wooden lamella layer (5) from the supply station (2) and placing the wooden lamella layer (5) on the first belt conveyor (21) by means of the transfer means (13); - conveying the wooden lamella layer (5) in the first conveying direction (12) transversely to the longitudinal lamella direction (10) by means of the first belt conveyor (21) at a first conveying speed; - operating the discharge belt conveyor (24) at a second conveying speed, wherein the second conveying speed is greater than the first conveying speed, and wherein the wooden lamellae (6) are thereby discharged by the discharge belt conveyor (24) when they are in the overlap area (29), wherein the distance between them on the discharge belt conveyor (24) is greater than on the first belt conveyor (21); - introducing the alignment elements (34) of the alignment station (3) into the discharge belt receiving plane (31), so that the wooden lamellae (6) transported on the discharge belt conveyor (24) are brought into contact with the alignment elements (34) and thereby aligned; - removing the alignment elements (34) from the discharge belt receiving plane (31) in order to enable further conveying of the wooden lamellae (6) by means of the discharge belt conveyor (24).

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